Welcome

I am Josias Neumüller. My head is always full of ideas, and I have been lucky enough to discover a lot of cool things. Some of them turned into small or larger projects, and this is where I collect them. There is more about me on a separate page. Mostly it is about technology, everyday life, circuit boards, pyrotechnics, smart home, medical technology and cool stuff and science in general. Maybe someone else enjoys it too. Most articles were originally written in German, the English versions are translations.

Red cotton candy machine from above, the white two part 3D printed guard ring lies around the silver spinner head.

Removable Guard Ring for the Cotton Candy Machine

A magnetically held, dishwasher safe 3D printed guard ring that makes cleaning the cotton candy machine much easier.

3D Printed Video Laryngoscope

A wireless video laryngoscope for teaching, built from a cheap WiFi endoscope camera and a 3D printed housing.

Logitech Spotlight presenter with USB C adapter and short charging cable in front of the black 3D printed case, whose opened lid is labeled PRESENTER JOSIAS in orange.

Case for the Logitech Spotlight Presenter

A compact, sturdy case for a presenter, with room for an adapter and a charging cable.

Close up of the hinge in the head model with the tongue marked in red.

Head Model for Obstructed Airways

A low cost demonstration model for first aid training

Close up of the touch sensor at the end of the lamp with the micro USB charging port.

Smart ROLFSTORP

Making cheap IKEA lamps smart home capable

Close up of a bear shaped circuit board medal on a red cord, LED and diode are soldered onto the folded dipole in the middle, a blurred campfire in the background.

WiFi Light

How a small circuit board makes WiFi visible without any battery.